Objet260 User Guide
7 Handling Printed Models
DOC-37004 Rev. E
7-4
Removing
SUP705 with
Caustic Soda
Soak models in a 1-percent solution of caustic soda (sodium hydroxide) to
remove support material from difficult-to-reach areas and to give the model a
smooth, clean finish. The amount of time you soak the model in the solution
depends on how delicate it is and how much support material needs to be
removed, but it is typically between half-an-hour and several hours. In any
case, you should remove as much support material as possible before the
caustic soda treatment, and rinse the model thoroughly (with a water jet)
afterwards.
Warning
Caustic soda may cause chemical burns, scarring and blindness. Mixing it
with water generates heat that could ignite other materials. Never pour
water into caustic soda. When diluting the solution, always add caustic
soda to water. Take adequate safety precautions; always use nitrile
gloves when handling caustic soda and models soaked in it.
Removing
SUP706 with
Caustic Soda
and Sodium
Metasilicate
Soak models in a 2-percent solution of caustic soda (sodium hydroxide) and
sodim metasilicate (Na
2
SiO
3
) to remove support material. The amount of time
you soak the model in the solution depends on how delicate it is and how
much support material needs to be removed. Rinse the model thoroughly
under running water afterwards.
SUP706 will dissolve into the caustic soda and sodium metasilicate
solution and saturate it, reducing its effectiveness. Replace the solution
when the Support material reaches 20% of the solution (after
approximately one month of average use).
Warning
Caustic soda may cause chemical burns, scarring and blindness. Mixing it
with water generates heat that could ignite other materials. Never pour
water into caustic soda. When diluting the solution, always add caustic
soda to water. Take adequate safety precautions; always use nitrile
gloves when handling caustic soda and models soaked in it.
